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A Senior React Native/Expo Developer & Software Architect with 9+ years of experience building high-quality mobile and full-stack applications — from MVPs to production systems used by thousands of users. I don’t just build apps — I design systems that are scalable, maintainable, and ready for growth. 🚀 What I specialise in: • ⚙️ Mobile architecture (React Native / Expo) — clean, scalable, production-ready • 🧠 Full-stack development — Node.js, PostgreSQL, Supabase, Firebase • 🌐 Web & admin panels — React, Next.js, dashboards, internal tools • 🤖 AI integrations — OpenAI, Claude, AI-powered features (recommendations, generation, automation) • 🔌 API integrations — payments (Stripe, RevenueCat), maps, analytics, third-party platforms • 📡 Real-time systems — chat, live updates, subscriptions, WebSockets • 🧪 Performance, debugging & stabilization — fixing complex apps, not just building from scratch • 👥 Tech leadership — leading teams, structuring projects, mentoring developers 📱 Experience: • 40+ mobile apps shipped (iOS & Android) • Built and scaled apps in: healthtech, fintech, social, marketplaces, AI products • Strong experience with existing codebase refactoring & stabilization • Led teams and delivered full-cycle development (architecture → release → scaling) 🛠 Tech Stack: Mobile: React Native (Expo & bare), TypeScript, Reanimated, React Navigation Backend & DB: Node.js, PostgreSQL, Supabase, Firebase (Auth, Firestore, Functions), REST, GraphQL Web: React, Next.js, admin dashboards, Vercel deployments AI & Integrations: OpenAI, Claude, AI workflows, OCR, recommendation systems Other: Stripe, RevenueCat, Mapbox, WebSockets, CI/CD (GitHub Actions, Bitrise), App Store & Google Play releases 💬 How I work I focus on: • clean architecture (so you don’t need to rebuild in 3 months) • fast iteration (MVPs in weeks, not months) • real product thinking (not just coding tickets) I’m comfortable: • owning the full product • jumping into messy codebases and fixing them • making technical decisions independently 🤝 Let’s work together If you need someone who can build, fix, scale, and actually think like a product engineer, I’d love to help. Let’s build something solid 🚀

🏆 Senior Mobile App Developer | React Native developer | React & React Native developer React Native (Expo )🏆 I am a senior-level React Native mobile developer and full-stack engineer with 6+ years of hands-on experience delivering production-ready iOS and Android applications. I work extensively with React Native and React, taking full ownership of the development lifecycle—from mobile architecture and implementation to backend integration and performance optimization. 🔹 Cross-Platform Mobile Development (iOS & Android with React Native) 🔹 Scalable, High-Performance Application Architecture 🔹 Clean, Maintainable, and Production-Ready Codebases 🔹 Seamless API Integration and Backend Connectivity 🔹 Firebase Services, Secure Authentication, and Push Notifications 🔹 Intuitive UI/UX with Responsive, User-Centered Design 🔹 Performance Optimization, Debugging, and Stability Improvements 🔹 Transparent Communication and Consistent Delivery Timelines 🔹 Long-Term Technical Partnership and Ongoing Support 🔥 𝐌𝐲 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 — 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ✅ React Native Mobile App Development (iOS & Android) ✅ React Native UI Development, Figma / Sketch / XD to App Conversion ✅ React Native Cross-Platform App Development (Single Codebase) ✅ React Native API Integration (REST, GraphQL, Firebase, Node.js) ✅ React Native App Optimization, Debugging & Performance Enhancement ✅ React Native Payment Gateway Integration (Stripe, PayPal, Razorpay) ✅ React Native App Publishing on Google Play Store & Apple App Store ✅ React Native Code Maintenance & GitHub Version Control 🔥 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐀𝐩𝐩 𝐓𝐲𝐩𝐞𝐬 𝐈 𝐂𝐚𝐧 𝐁𝐮𝐢𝐥𝐝 𝐟𝐨𝐫 𝐘𝐨𝐮: ✅ React Native E-commerce & Shopping Mobile Apps ✅ React Native Food Delivery & Restaurant Mobile Apps ✅ React Native Grocery & Mart Mobile Apps ✅ React Native Taxi, Ride-Booking & Transport Mobile Apps ✅ React Native Finance, Wallet & Banking Mobile Apps ✅ React Native Social, Chat & Dating Mobile Apps ✅ React Native Healthcare, Fitness & Doctor Booking Mobile Apps ✅ React Native Education & eLearning Mobile Apps ✅ React Native Real Estate & Property Mobile Apps ✅ React Native Event, Ticket & Reservation Mobile Apps ✅ React Native Travel, Hotel & Tourism Mobile Apps ✅ React Native Streaming (Video/Music) Mobile Apps ✅ React Native On-Demand Service Mobile Apps ✅ React Native News, Blog & Media Mobile Apps ✅ React Native CRM & Business Management Mobile Apps If you are looking for a reliable React Native Mobile App Developer who has both software house and freelance experience, I can deliver secure, fast, and user-friendly apps that perfectly match your business needs. 💬 𝐋𝐞𝐭’𝐬 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐭𝐨𝐝𝐚𝐲. 📨 𝐂𝐥𝐢𝐜𝐤 “𝐈𝐧𝐯𝐢𝐭𝐞 𝐭𝐨 𝐉𝐨𝐛” 𝐨𝐫 “𝐌𝐞𝐬𝐬𝐚𝐠𝐞” 𝐧𝐨𝐰 𝐚𝐧𝐝 𝐈’𝐥𝐥 𝐫𝐞𝐯𝐢𝐞𝐰 𝐲𝐨𝐮𝐫 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 𝐚𝐧𝐝 𝐬𝐡𝐚𝐫𝐞 𝐚 𝐜𝐥𝐞𝐚𝐫 𝐩𝐥𝐚𝐧.

About Me I have 10+ years of experience in Project Management of Mobile App Development, specializing in Android, iOS, & Cross-Platform App Development using Java, Kotlin, Swift, Objective C, React Native Mobile, Redux Flutter, Firebase, Mongo Db, User Authentication, EHR, FHIR, HL7, HIPAA compliance, Typescripts, and AI-driven applications. My expertise spans iOS & Android development, AI-powered solutions, seamless authentication systems, and full-stack capabilities, ensuring modern, high-performance apps for businesses of all sizes. Our Agency Since July 2017, my husband, our talented 55+ team members, and I have been delivering world-class digital solutions. - 150+ apps successfully delivered across multiple platforms in the last year - $4M+ turnover on Upwork - 500+ successful projects, 15,000+ hours worked - Close to a 100% success rate - Worked with 7, 8, and 9-figure businesses Our Expertise Mobile App Development • Android, iOS, & Cross-Platform Apps (Java, Kotlin, Swift, Objective C, React Native Mobile, Flutter) Web & Full Stack Development • Front-End: React.js, Angular.js, Next.js, WebRTC • Back-End: Node.js, Firebase, MongoDB, PostgreSQL • Cloud Deployment & API Integrations E-commerce & CMS Development • Shopify Developer & Customization • WordPress Developer & WooCommerce Solutions UI/UX Design & Branding • Adobe XD, Figma, Photoshop, Sketch Digital Growth & Security • SEO & Digital Marketing Optimization • Data Security & Intellectual Property Protection Intellectual Property Services • Trademark & Copyright Assistance Why Choose SolidAppMaker? - Tailored Approach: Every project is customized to fit your needs and budget. - Agile Workflow: Regular updates, milestones, and transparent communication. - High-Quality Development: Rigorous testing & performance optimization. - Competitive Pricing: Top-tier services at fair and transparent pricing. - Proven Track Record: Experience with MVPs, SaaS platforms, AI-driven apps, and enterprise solutions. Why SolidAppMaker Stands Out - 8+ years of expertise in UI/UX, mobile apps, SaaS & web development - 510+ projects successfully completed for startups & enterprises - 10+ awards & recognitions, featured on Upwork & top design platforms - 20+ countries served, delivering top-tier prototyping & development solutions Industries We Cover Healthcare, Transport, Retail, Asset Management, Real Estate, Dating, Nature/Wildlife, Rental, Food Delivery, Fintech / Finance and Banking, Cryptocurrency, Entertainment, Hospitality, Logistics, Manufacturing, Media and Publishing, Non-Profit, Sports and Fitness, Travel and Tourism, Utilities, Wellness, Medical Dashboard, Marketplace, Advertising, Automotive, Business Innovations, Ecology, Human Resources, LegalTech, Lifestyle, Fashion, Marketing, Navigation, Education, E-learning. Highlighted Skills Project Planning, MVC Architecture and RESTful APIs, Front-end Technologies (React.js, HTML5, CSS3, JavaScript), Responsive and Mobile-first Design, Database Design and Implementation (MongoDB, Firebase), User Authentication, Integration of Third-party APIs, Deployment to Cloud Platforms (AWS), Test-driven Development, Agile Methodologies (Scrum, Kanban), Security Technologies, QR Code Scanner, GPS and Mapping, Blockchain and NFT, ChatGPT and Artificial Intelligence. React Native Mobile Developer 10+ years of experience As a Mobile App Developer and Full Stack Developer with deep expertise in SaaS Mobile App, React Native Mobile App I bring over a decade of experience in building high-performance cross-platform mobile application. As a talented React Native Mobile Developer with good knowledge of cross-platform development, I specialize in crafting high-performance mobile apps for both iOS and Android platforms. I made more than 400 apps using React Native Mobile. Reactnative Mobile is my main tech stack, making top-performing apps using React Native Mobile. IOSDeveloper AndroidDevelop As a mobile app developer and full stack developer, I specialize in building robust cross-platform solutions using Flutter, React Native Mobile, and Expo for rapid development. My projects often leverage Firebase for secure real-time data storage and user authentication, and I have hands-on experience integrating WebRTC for live video and audio communication inside mobile apps. On the backend, I frequently use Laravel to build scalable APIs and admin panels that perfectly support mobileapp solutions. ReactNative Next Steps – Let’s Build Something Amazing! 📅 Would you be available for a 30-60 minute free consultation? During this meeting, we will: - Go over your project goals, technical needs, and budget. - Provide a project plan with a timeline and cost estimate. - Discuss the best development approach to fit your vision. - Send me a message, and I’ll share the Upwork scheduler link so we can set up a time that works best for you. Looking forward to collaborating and creating something extraordinary! Best regards, Daisy VC

I am an expert mobile app developer in the top 1% of contractors on Upwork. Using React Native, I create well-designed, beautiful cross-platform mobile apps. I love React Native and have been using it to develop a variety of apps for clients ever since it came out. I am a computer science graduate from Azusa Pacific University, and won the hackathon there for one of the apps I made with React Native in under 72 hours. I am easygoing and enjoy working on interesting projects on the cutting edge of technology. I like working with other people, trying to bring their vision for apps to come to life. My most common workflow is Trello, Slack, Github, VSCode, Powershell, Expo, React Native, Firebase. I post daily updates on my progress, as well as over-the-air updates so that you can physically see on your device the progress being made. I always write out clear proposals before committing to working on a project. My code is almost always re-usable, which allows me to make new apps much quicker. At this point I basically have my own library of components to build with. React Native itself allows modular code reuse which helps with this. I've built apps from scratch for clients lots of times, and each time I get better at it. I can give accurate estimates and recommendations because of this. There's also some neat coding tricks I've picked up along the way. I am very flexible with time schedules, app requirements, and so on. The way I'm able to do this is by preferring firm-fixed price, and by starting with the smallest possible version. I enjoy making apps, so if you have an app idea and want it made, let me know and I'll do my best to help get it made. Whether that means me giving recommendations on how you can build it yourself, or me guiding a more junior developer I put you in contact with, or I end up giving a free consultation, I'd love to hear about your app and see if I can help.

Mobile App Developer and React Native Developer focused on building high-quality iOS and Android apps for startups and growing businesses. I help founders and teams launch new mobile apps, improve existing products, fix performance issues, and ship features faster using React Native, Flutter, Swift, and native Android technologies. If you’re hiring because you need certainty (not “hours”), here’s what you get: ✅ A clear build plan (milestones, scope, timeline, risks) before we start ✅ App Store-ready delivery (builds, signing, TestFlight, Play Console) ✅ Scalable code (TypeScript/Dart patterns, modular structure, maintainable UI) 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 (𝗮𝗻𝗱 𝘄𝗵𝗮𝘁 𝗜’𝗺 𝘀𝗲𝗮𝗿𝗰𝗵𝗲𝗱 𝗳𝗼𝗿): • React Native App Development (TypeScript, Expo, native modules when needed) • Flutter App Development (Dart, pixel-perfect UI, smooth animations) • iOS Developer work (Swift / SwiftUI) for native features & performance • Android (Kotlin) for platform-specific modules • Firebase backend (Auth, Firestore, Cloud Functions, Push Notifications) • Payments (Stripe), Maps, Chat, Real-time + Offline Sync 𝗣𝗿𝗼𝗼𝗳 & 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 𝘀𝘁𝘆𝗹𝗲: • 100% JSS | $100K+ earned | 4000+ hours | 34+ projects • Figma → working app with matching UI, responsiveness, and edge cases covered • Regular updates + clean documentation so you’re never guessing progress If you need a mobile developer who can take ownership and move fast without creating chaos, send me a message with your app details.

🚀 I’m Sabahat Sharif, a passionate Mobile App Developer specializing in Flutter, FlutterFlow, React Native, and backend technologies like Node.js for building high-performance Android and iOS applications. With 6+ years of hands-on experience, I focus on developing scalable and user-centric mobile apps. I help businesses grow through modern Flutter-based solutions, managing everything from intuitive UI/UX design and seamless backend integration to successful App Store and Play Store deployment ensuring long-term performance, scalability, and reliability. ✅ Tech Stack: Flutter, FlutterFlow, React Native, Firebase, Node.js, MongoDB, iOS, Android, API Integration, GraphQL ✅ Projects Delivered: 100+ Mobile & Web Applications Worldwide ✅ Specialization: Scalable Flutter App Development & Cross-Platform Mobile Solutions ✅ Industries Served: Startups, SMEs, and Growth-Focused Businesses ✅ Core Strengths: Speed, Performance, and User-Focused UX ✅ Work Ethic: Agile Methods, On-Time Delivery, and Long-Term Support ✅ Focus: Future-Ready Flutter & Flutter Flow Mobile Apps Built to Scale What I Deliver: ✔️ Redesign and optimize apps to increase downloads and engagement by 30%+ ✔️ Modernize outdated apps into high-performing Flutter-based products ✔️ Build cross-platform mobile apps with Flutter, FlutterFlow, and React Native ✔️ Design clean, conversion-focused UI/UX to enhance user retention ✔️ Manage complete App Store and Play Store deployment with CI/CD pipelines ✅ Core Skills & Technologies 🔹 Mobile: Flutter, Flutter Flow, Dart, React Native, Expo, iOS, Android 🔹 Frontend: React.js, JavaScript (ES6+), HTML5, Tailwind CSS, Bootstrap 🔹 Backend: Node.js, Express.js 🔹 Databases: Firebase, MongoDB (Mongoose), PostgreSQL (basic) 🔹 Authentication: Firebase Auth, JWT, OAuth2 🔹 State Management: BLoC, Provider, Riverpod, Redux, Context API 🔹 Tools: Git, GitHub, Docker, Postman, VS Code, Android Studio 🔹 Deployment: Firebase Hosting, Vercel, Render, Netlify, AWS (basic) End-to-End Project Ownership: • Architecture & Planning: Strategies aligned with your business goals • Development: Clean, maintainable, and scalable Flutter code • Deployment: Smooth publishing process for iOS and Android • Post-Launch: Ongoing support, updates, and performance optimization Platforms and Solutions: ✔️ Android App Development ✔️ iOS App Development ✔️ React Native ✔️ Cross-Platform Flutter & FlutterFlow Applications ✔️ SaaS and Hybrid Mobile Applications Let’s bring your app idea to life with FlutterFlow-powered prototypes and high-quality cross-platform, native Android & iOS, SaaS, and hybrid applications built for performance, scalability, and long-term growth. Best, Sabahat Sharif